GB899046A - Electric power supply apparatus - Google Patents
Electric power supply apparatusInfo
- Publication number
- GB899046A GB899046A GB15685/60A GB1568560A GB899046A GB 899046 A GB899046 A GB 899046A GB 15685/60 A GB15685/60 A GB 15685/60A GB 1568560 A GB1568560 A GB 1568560A GB 899046 A GB899046 A GB 899046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- secondary windings
- pairs
- cbt
- energize
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1203—Circuits independent of the type of conversion
- H02H7/1206—Circuits independent of the type of conversion specially adapted to conversion cells composed of a plurality of parallel or serial connected elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1012—Power supply characterised by parts of the process
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/08—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Arc Welding Control (AREA)
Abstract
899,046. Protective cut-out arrangements. WESTINGHOUSE ELECTRIC CORPORATION. May 4, 1960 [May 11, 1959], No. 15685/60. Class 38 (5). [Also in Group XXXV] In a supply system, e.g. for an arc welder, comprising a power transformer having one or more pairs of separate secondary windings S1 . . . S4 supplying silicon or germanium rectifier bridges RX1 . . . RX4, current transformers CT1 . . . CT4 have their primary windings connected in series with each of the power transformer secondary circuits and their secondary windings connected in parallel in opposed pairs. A relay 2CR has its winding connected across the current transformer secondary windings and is energized when imbalance occurs due to a faulty rectifier element. The relay closes its contacts 2CRa to energize the trip coil CBT of a main circuit breaker CB. A further relay 1CR has its lowimpedance coil connected in series with one of the pairs of current transformer secondary windings and responds with an inverse time delay to overload currents in the system. The relay 1CR closes contacts 1CRa to energize the trip coil CBT. High speed fuses 13 may be provided when two or more of the systems shown are used in parallel. Specification 857,395 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US812547A US3069614A (en) | 1959-05-11 | 1959-05-11 | Power supply apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB899046A true GB899046A (en) | 1962-06-20 |
Family
ID=25209925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15685/60A Expired GB899046A (en) | 1959-05-11 | 1960-05-04 | Electric power supply apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US3069614A (en) |
DE (1) | DE1144395B (en) |
GB (1) | GB899046A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3103824A (en) * | 1958-09-23 | 1963-09-17 | Felix J Grumann | Memory drum for coin operated record player |
US3281642A (en) * | 1962-02-20 | 1966-10-25 | Ite Circuit Breaker Ltd | A.-c. measurement of d.-c. output of rectifiers |
US3261980A (en) * | 1962-12-17 | 1966-07-19 | Jr William B Mccartney | Electrical recycling circuit for controlling and protecting functional equipment |
US3371242A (en) * | 1964-04-07 | 1968-02-27 | Harnischfeger Corp | Arc power supply using solid state control devices for phase shifting |
US3292038A (en) * | 1964-06-03 | 1966-12-13 | Harnischfeger Corp | D. c. power supply |
US3337769A (en) * | 1965-04-21 | 1967-08-22 | Harnischfeger Corp | Three phase controlled power supply for a direct current arc welding system |
US4186391A (en) * | 1978-08-22 | 1980-01-29 | The Bendix Corporation | Apparatus for detecting diode failures in multiple diode rectifier bridges |
US5260545A (en) * | 1991-04-29 | 1993-11-09 | Century Manufacturing Co. | Welding power supply |
US20070267393A1 (en) * | 2003-07-11 | 2007-11-22 | Lincoln Global, Inc. | Power source for high current welding |
US6998573B2 (en) * | 2003-07-11 | 2006-02-14 | Lincoln Global, Inc. | Transformer module for a welder |
US7573000B2 (en) * | 2003-07-11 | 2009-08-11 | Lincoln Global, Inc. | Power source for plasma device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1594116A (en) * | 1919-08-15 | 1926-07-27 | Forrest E Ricketts | Electrical protective device |
US1888718A (en) * | 1928-09-26 | 1932-11-22 | Westinghouse Electric & Mfg Co | Relaying system |
US2259331A (en) * | 1938-08-25 | 1941-10-14 | Westinghouse Electric & Mfg Co | Protective system for gaseous discharge devices |
US2289149A (en) * | 1940-07-26 | 1942-07-07 | Westinghouse Electric & Mfg Co | Electrical relay |
US2309433A (en) * | 1941-04-19 | 1943-01-26 | Gen Electric | Protective system |
US2386526A (en) * | 1943-09-09 | 1945-10-09 | Mallory & Co Inc P R | Protective circuit for transformerrectifier systems |
US2576132A (en) * | 1949-08-18 | 1951-11-27 | Westinghouse Electric Corp | Protective system for series capacitors |
BE523549A (en) * | 1952-11-05 | |||
US2866147A (en) * | 1953-09-04 | 1958-12-23 | Westinghouse Electric Corp | Arc welding apparatus |
US2828461A (en) * | 1954-12-23 | 1958-03-25 | Siemens Ag | Contact transformer with two parallel contact systems |
BE559130A (en) * | 1956-07-12 | 1900-01-01 | Westinghouse Electric Corp | |
US2888613A (en) * | 1956-10-09 | 1959-05-26 | Westinghouse Electric Corp | Capacitor protection scheme |
-
1959
- 1959-05-11 US US812547A patent/US3069614A/en not_active Expired - Lifetime
-
1960
- 1960-05-04 GB GB15685/60A patent/GB899046A/en not_active Expired
- 1960-05-11 DE DEW27832A patent/DE1144395B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3069614A (en) | 1962-12-18 |
DE1144395B (en) | 1963-02-28 |
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